Results 111 to 120 of about 3,761 (232)

Sedimentary record of anchovy population dynamics in the Yellow Sea and its response to climate changes [PDF]

open access: yes, 2015
以往的鱼类种群动态研究和管理措施,多数采用了被研究鱼类捕捞产量取代资源量的方法,两者之间不仅存在着巨大差异,而且时间尺度较短,种群自然波动、人为干预和全球气候变化引起的鱼类资源变化相互交织,难以理清引起鱼类种群变化的主导因素。日本鳀(Engraulisjaponicus)是黄、东海单品种现存量最高的鱼种,以摄食浮游动物为主,同时也是高营养级动物食性鱼类的重要饵料生物,在食物网浮游动物与高营养级鱼类的能量和营养转化中起着承上启下的重要作用,是黄、东海生态系统能量和营养动力学研究的关键种 ...
黄建生
core  

Macro- and megafauna recorded in the submarine Bari Canyon (southern Adriatic, Mediterranean Sea) using different tools [PDF]

open access: yes, 2015
Macro- and megafauna were recorded in the submarine Bari Canyon, located in the southern Adriatic Sea (Mediterranean Sea) during an oceanographic cruise carried out in May-June 2012 and an experimental fishing survey conducted in November 2013.
CAPEZZUTO, FRANCESCA   +14 more
core   +1 more source

Rhinopias eschmeyeri Condé, 1977 (Family Scorpaenidae) - a new record from Indian waters [PDF]

open access: yes, 2011
The Eschmeyer's scorpionfish, Rhinopias eschmeyeri is reported for the first time from the Indian waters. Two specimens of this species were collected from trawlers operated in Gulf of Mannar, southeast coast of India, during November, 2009. Comparison
Varghese, Molly
core  

Comparison of habitat-based indices of abundance with fishery-independent biomass estimates from bottom trawl surveys [PDF]

open access: yes, 2012
Rockfish species are notoriously difficult to sample with multispecies bottom trawl survey methods. Typically, biomass estimates have high coefficients of variation and can fluctuate outside the bounds of biological reality from year to year.
Martin , Michael H.   +1 more
core  

Morphological, ultrastructural, and molecular identification of a new microsporidian pathogen isolated from Crepidodera aurata (Coleoptera, Chrysomelidae) [PDF]

open access: yes, 2019
A new microsporidian pathogen isolated from Crepidodera aurata was identified based on morphological and ultrastructural characteristics, coupled with a molecular phylogenetic analysis.
Algi, Gönül   +2 more
core   +1 more source

New eastern Pacific Ocean record of the rare deep-water fish, Psychrolutes phrictus (Scorpaeniformes: Psychrolutidae)

open access: yesRevista Mexicana de Biodiversidad, 2016
Psychrolutes phrictus is a benthic deep sea fish known from the eastern North Pacific. On 30 March 2008, a specimen of the blob sculpin P. phrictus (297 mm LT) was caught off the Guerrero coast, Mexico (17°45'24"N, 101°59'04"W).
Hugo Aguirre-Villaseñor   +2 more
doaj   +1 more source

Finfish constituents of trawl low value by-catch off Mangalore [PDF]

open access: yes, 2014
Trawling remains a controversial method of fishing due to the poor selectivity of trawl net and catching of hugequantity and diversity of non target fishes.
Anjanayappa, H N   +7 more
core  

The complete mitochondrial genome of the Arctic staghorn sculpin Gymnocanthus tricuspis (Scorpaeniformes: Cottidae)

open access: yesMitochondrial DNA. Part B. Resources, 2019
The complete mitochondrial genome was determined for Arctic staghorn sculpin Gymnocanthus tricuspis (Reinhardt, 1830), which is considered an important part of Arctic food webs.
Puqing Song   +4 more
doaj   +1 more source

Shape based assignment tests suggest transgressive phenotypes in natural sculpin hybrids (Teleostei, Scorpaeniformes, Cottidae)

open access: yesFrontiers in Zoology, 2005
Background Hybridization receives attention because of the potential role that it may play in generating evolutionary novelty. An explanation for the emergence of novel phenotypes is given by transgressive segregation, which, if frequent, would imply an ...
Sheets H David, Nolte Arne W
doaj   +1 more source

Home - About - Disclaimer - Privacy